1925019601 has 2 divisors, whose sum is σ = 1925019602. Its totient is φ = 1925019600.

The previous prime is 1925019583. The next prime is 1925019643. The reversal of 1925019601 is 1069105291.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1685513025 + 239506576 = 41055^2 + 15476^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1925019601 is a prime.

It is not a weakly prime, because it can be changed into another prime (1925019301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 962509800 + 962509801.

It is an arithmetic number, because the mean of its divisors is an integer number (962509801).

Almost surely, 2^1925019601 is an apocalyptic number.

It is an amenable number.

1925019601 is a deficient number, since it is larger than the sum of its proper divisors (1).

1925019601 is an equidigital number, since it uses as much as digits as its factorization.

1925019601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 34.

The square root of 1925019601 is about 43875.0453105179. The cubic root of 1925019601 is about 1243.9751895277.

The spelling of 1925019601 in words is "one billion, nine hundred twenty-five million, nineteen thousand, six hundred one".